2 * TI DA850/OMAP-L138 EVM board
4 * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
6 * Derived from: arch/arm/mach-davinci/board-da830-evm.c
7 * Original Copyrights follow:
9 * 2007, 2009 (c) MontaVista Software, Inc. This file is licensed under
10 * the terms of the GNU General Public License version 2. This program
11 * is licensed "as is" without any warranty of any kind, whether express
14 #include <linux/kernel.h>
15 #include <linux/module.h>
16 #include <linux/init.h>
17 #include <linux/console.h>
18 #include <linux/i2c.h>
19 #include <linux/i2c/at24.h>
20 #include <linux/gpio.h>
21 #include <linux/platform_device.h>
22 #include <linux/mtd/mtd.h>
23 #include <linux/mtd/nand.h>
24 #include <linux/mtd/partitions.h>
25 #include <linux/mtd/physmap.h>
27 #include <asm/mach-types.h>
28 #include <asm/mach/arch.h>
30 #include <mach/common.h>
31 #include <mach/irqs.h>
32 #include <mach/cp_intc.h>
33 #include <mach/da8xx.h>
34 #include <mach/nand.h>
36 #define DA850_EVM_PHY_MASK 0x1
37 #define DA850_EVM_MDIO_FREQUENCY 2200000 /* PHY bus frequency */
39 #define DA850_LCD_BL_PIN GPIO_TO_PIN(2, 15)
40 #define DA850_LCD_PWR_PIN GPIO_TO_PIN(8, 10)
42 #define DA850_MMCSD_CD_PIN GPIO_TO_PIN(4, 0)
43 #define DA850_MMCSD_WP_PIN GPIO_TO_PIN(4, 1)
46 static void da850_evm_m25p80_notify_add(struct mtd_info
*mtd
)
48 char *mac_addr
= davinci_soc_info
.emac_pdata
->mac_addr
;
51 if (!strcmp(mtd
->name
, "MAC-Address")) {
52 mtd
->read(mtd
, 0, ETH_ALEN
, &retlen
, mac_addr
);
53 if (retlen
== ETH_ALEN
)
54 pr_info("Read MAC addr from SPI Flash: %pM\n",
59 static struct mtd_notifier da850evm_spi_notifier
= {
60 .add
= da850_evm_m25p80_notify_add
,
63 static void da850_evm_setup_mac_addr(void)
65 register_mtd_user(&da850evm_spi_notifier
);
68 static void da850_evm_setup_mac_addr(void) { }
71 static struct mtd_partition da850_evm_norflash_partition
[] = {
73 .name
= "NOR filesystem",
75 .size
= MTDPART_SIZ_FULL
,
80 static struct physmap_flash_data da850_evm_norflash_data
= {
82 .parts
= da850_evm_norflash_partition
,
83 .nr_parts
= ARRAY_SIZE(da850_evm_norflash_partition
),
86 static struct resource da850_evm_norflash_resource
[] = {
88 .start
= DA8XX_AEMIF_CS2_BASE
,
89 .end
= DA8XX_AEMIF_CS2_BASE
+ SZ_32M
- 1,
90 .flags
= IORESOURCE_MEM
,
94 static struct platform_device da850_evm_norflash_device
= {
95 .name
= "physmap-flash",
98 .platform_data
= &da850_evm_norflash_data
,
101 .resource
= da850_evm_norflash_resource
,
104 /* DA850/OMAP-L138 EVM includes a 512 MByte large-page NAND flash
105 * (128K blocks). It may be used instead of the (default) SPI flash
106 * to boot, using TI's tools to install the secondary boot loader
109 struct mtd_partition da850_evm_nandflash_partition
[] = {
111 .name
= "u-boot env",
114 .mask_flags
= MTD_WRITEABLE
,
118 .offset
= MTDPART_OFS_APPEND
,
120 .mask_flags
= MTD_WRITEABLE
,
124 .offset
= MTDPART_OFS_APPEND
,
126 .mask_flags
= MTD_WRITEABLE
,
135 .name
= "filesystem",
136 .offset
= MTDPART_OFS_APPEND
,
137 .size
= MTDPART_SIZ_FULL
,
142 static struct davinci_nand_pdata da850_evm_nandflash_data
= {
143 .parts
= da850_evm_nandflash_partition
,
144 .nr_parts
= ARRAY_SIZE(da850_evm_nandflash_partition
),
145 .ecc_mode
= NAND_ECC_HW
,
146 .options
= NAND_USE_FLASH_BBT
,
149 static struct resource da850_evm_nandflash_resource
[] = {
151 .start
= DA8XX_AEMIF_CS3_BASE
,
152 .end
= DA8XX_AEMIF_CS3_BASE
+ SZ_512K
+ 2 * SZ_1K
- 1,
153 .flags
= IORESOURCE_MEM
,
156 .start
= DA8XX_AEMIF_CTL_BASE
,
157 .end
= DA8XX_AEMIF_CTL_BASE
+ SZ_32K
- 1,
158 .flags
= IORESOURCE_MEM
,
162 static struct platform_device da850_evm_nandflash_device
= {
163 .name
= "davinci_nand",
166 .platform_data
= &da850_evm_nandflash_data
,
168 .num_resources
= ARRAY_SIZE(da850_evm_nandflash_resource
),
169 .resource
= da850_evm_nandflash_resource
,
172 static struct i2c_board_info __initdata da850_evm_i2c_devices
[] = {
174 I2C_BOARD_INFO("tlv320aic3x", 0x18),
178 static struct davinci_i2c_platform_data da850_evm_i2c_0_pdata
= {
179 .bus_freq
= 100, /* kHz */
180 .bus_delay
= 0, /* usec */
183 static struct davinci_uart_config da850_evm_uart_config __initdata
= {
184 .enabled_uarts
= 0x7,
187 static struct platform_device
*da850_evm_devices
[] __initdata
= {
188 &da850_evm_nandflash_device
,
189 &da850_evm_norflash_device
,
192 /* davinci da850 evm audio machine driver */
193 static u8 da850_iis_serializer_direction
[] = {
194 INACTIVE_MODE
, INACTIVE_MODE
, INACTIVE_MODE
, INACTIVE_MODE
,
195 INACTIVE_MODE
, INACTIVE_MODE
, INACTIVE_MODE
, INACTIVE_MODE
,
196 INACTIVE_MODE
, INACTIVE_MODE
, INACTIVE_MODE
, TX_MODE
,
197 RX_MODE
, INACTIVE_MODE
, INACTIVE_MODE
, INACTIVE_MODE
,
200 static struct snd_platform_data da850_evm_snd_data
= {
201 .tx_dma_offset
= 0x2000,
202 .rx_dma_offset
= 0x2000,
203 .op_mode
= DAVINCI_MCASP_IIS_MODE
,
204 .num_serializer
= ARRAY_SIZE(da850_iis_serializer_direction
),
206 .serial_dir
= da850_iis_serializer_direction
,
207 .eventq_no
= EVENTQ_1
,
208 .version
= MCASP_VERSION_2
,
213 static int da850_evm_mmc_get_ro(int index
)
215 return gpio_get_value(DA850_MMCSD_WP_PIN
);
218 static int da850_evm_mmc_get_cd(int index
)
220 return !gpio_get_value(DA850_MMCSD_CD_PIN
);
223 static struct davinci_mmc_config da850_mmc_config
= {
224 .get_ro
= da850_evm_mmc_get_ro
,
225 .get_cd
= da850_evm_mmc_get_cd
,
227 .version
= MMC_CTLR_VERSION_2
,
230 static int da850_lcd_hw_init(void)
234 status
= gpio_request(DA850_LCD_BL_PIN
, "lcd bl\n");
238 status
= gpio_request(DA850_LCD_PWR_PIN
, "lcd pwr\n");
240 gpio_free(DA850_LCD_BL_PIN
);
244 gpio_direction_output(DA850_LCD_BL_PIN
, 0);
245 gpio_direction_output(DA850_LCD_PWR_PIN
, 0);
247 /* disable lcd backlight */
248 gpio_set_value(DA850_LCD_BL_PIN
, 0);
250 /* disable lcd power */
251 gpio_set_value(DA850_LCD_PWR_PIN
, 0);
253 /* enable lcd power */
254 gpio_set_value(DA850_LCD_PWR_PIN
, 1);
256 /* enable lcd backlight */
257 gpio_set_value(DA850_LCD_BL_PIN
, 1);
262 #define DA8XX_AEMIF_CE2CFG_OFFSET 0x10
263 #define DA8XX_AEMIF_ASIZE_16BIT 0x1
265 static void __init
da850_evm_init_nor(void)
267 void __iomem
*aemif_addr
;
269 aemif_addr
= ioremap(DA8XX_AEMIF_CTL_BASE
, SZ_32K
);
271 /* Configure data bus width of CS2 to 16 bit */
272 writel(readl(aemif_addr
+ DA8XX_AEMIF_CE2CFG_OFFSET
) |
273 DA8XX_AEMIF_ASIZE_16BIT
,
274 aemif_addr
+ DA8XX_AEMIF_CE2CFG_OFFSET
);
279 #if defined(CONFIG_MTD_PHYSMAP) || \
280 defined(CONFIG_MTD_PHYSMAP_MODULE)
286 #if defined(CONFIG_MMC_DAVINCI) || \
287 defined(CONFIG_MMC_DAVINCI_MODULE)
293 static __init
void da850_evm_init(void)
295 struct davinci_soc_info
*soc_info
= &davinci_soc_info
;
298 ret
= da8xx_pinmux_setup(da850_nand_pins
);
300 pr_warning("da850_evm_init: nand mux setup failed: %d\n",
303 ret
= da8xx_pinmux_setup(da850_nor_pins
);
305 pr_warning("da850_evm_init: nor mux setup failed: %d\n",
308 da850_evm_init_nor();
310 platform_add_devices(da850_evm_devices
,
311 ARRAY_SIZE(da850_evm_devices
));
313 ret
= da8xx_register_edma();
315 pr_warning("da850_evm_init: edma registration failed: %d\n",
318 ret
= da8xx_pinmux_setup(da850_i2c0_pins
);
320 pr_warning("da850_evm_init: i2c0 mux setup failed: %d\n",
323 ret
= da8xx_register_i2c(0, &da850_evm_i2c_0_pdata
);
325 pr_warning("da850_evm_init: i2c0 registration failed: %d\n",
328 soc_info
->emac_pdata
->phy_mask
= DA850_EVM_PHY_MASK
;
329 soc_info
->emac_pdata
->mdio_max_freq
= DA850_EVM_MDIO_FREQUENCY
;
330 soc_info
->emac_pdata
->rmii_en
= 0;
332 ret
= da8xx_pinmux_setup(da850_cpgmac_pins
);
334 pr_warning("da850_evm_init: cpgmac mux setup failed: %d\n",
337 ret
= da8xx_register_emac();
339 pr_warning("da850_evm_init: emac registration failed: %d\n",
342 ret
= da8xx_register_watchdog();
344 pr_warning("da830_evm_init: watchdog registration failed: %d\n",
349 pr_warning("WARNING: both NOR Flash and MMC/SD are "
350 "enabled, but they share AEMIF pins.\n"
351 "\tDisable one of them.\n");
353 ret
= da8xx_pinmux_setup(da850_mmcsd0_pins
);
355 pr_warning("da850_evm_init: mmcsd0 mux setup failed:"
358 ret
= gpio_request(DA850_MMCSD_CD_PIN
, "MMC CD\n");
360 pr_warning("da850_evm_init: can not open GPIO %d\n",
362 gpio_direction_input(DA850_MMCSD_CD_PIN
);
364 ret
= gpio_request(DA850_MMCSD_WP_PIN
, "MMC WP\n");
366 pr_warning("da850_evm_init: can not open GPIO %d\n",
368 gpio_direction_input(DA850_MMCSD_WP_PIN
);
370 ret
= da8xx_register_mmcsd0(&da850_mmc_config
);
372 pr_warning("da850_evm_init: mmcsd0 registration failed:"
376 davinci_serial_init(&da850_evm_uart_config
);
378 i2c_register_board_info(1, da850_evm_i2c_devices
,
379 ARRAY_SIZE(da850_evm_i2c_devices
));
382 * shut down uart 0 and 1; they are not used on the board and
383 * accessing them causes endless "too much work in irq53" messages
386 __raw_writel(0, IO_ADDRESS(DA8XX_UART1_BASE
) + 0x30);
387 __raw_writel(0, IO_ADDRESS(DA8XX_UART0_BASE
) + 0x30);
389 ret
= da8xx_pinmux_setup(da850_mcasp_pins
);
391 pr_warning("da850_evm_init: mcasp mux setup failed: %d\n",
394 da8xx_init_mcasp(0, &da850_evm_snd_data
);
396 ret
= da8xx_pinmux_setup(da850_lcdcntl_pins
);
398 pr_warning("da850_evm_init: lcdcntl mux setup failed: %d\n",
401 ret
= da850_lcd_hw_init();
403 pr_warning("da850_evm_init: lcd initialization failed: %d\n",
406 ret
= da8xx_register_lcdc();
408 pr_warning("da850_evm_init: lcdc registration failed: %d\n",
411 da850_evm_setup_mac_addr();
414 #ifdef CONFIG_SERIAL_8250_CONSOLE
415 static int __init
da850_evm_console_init(void)
417 return add_preferred_console("ttyS", 2, "115200");
419 console_initcall(da850_evm_console_init
);
422 static __init
void da850_evm_irq_init(void)
424 struct davinci_soc_info
*soc_info
= &davinci_soc_info
;
426 cp_intc_init((void __iomem
*)DA8XX_CP_INTC_VIRT
, DA850_N_CP_INTC_IRQ
,
427 soc_info
->intc_irq_prios
);
430 static void __init
da850_evm_map_io(void)
435 MACHINE_START(DAVINCI_DA850_EVM
, "DaVinci DA850/OMAP-L138 EVM")
437 .io_pg_offst
= (__IO_ADDRESS(IO_PHYS
) >> 18) & 0xfffc,
438 .boot_params
= (DA8XX_DDR_BASE
+ 0x100),
439 .map_io
= da850_evm_map_io
,
440 .init_irq
= da850_evm_irq_init
,
441 .timer
= &davinci_timer
,
442 .init_machine
= da850_evm_init
,